scsi: ufs: Add DELAY_BEFORE_LPM quirk for Micron devices

[ Upstream commit c0a18ee0ce78d7957ec1a53be35b1b3beba80668 ]

It is confirmed that Micron device needs DELAY_BEFORE_LPM quirk to have a
delay before VCC is powered off. Sdd Micron vendor ID and this quirk for
Micron devices.

Link: https://lore.kernel.org/r/20200612012625.6615-2-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/scsi/ufs/ufs_quirks.h b/drivers/scsi/ufs/ufs_quirks.h
index 71f73d1d1ad1fb9b7c357c65baf0f49ec9dfa780..6c944fbefd40ad36c95eabe1e47f936271b92ef7 100644 (file)
--- a/drivers/scsi/ufs/ufs_quirks.h
+++ b/drivers/scsi/ufs/ufs_quirks.h
@@ -21,6 +21,7 @@
 #define UFS_ANY_VENDOR 0xFFFF
 #define UFS_ANY_MODEL  "ANY_MODEL"
 
+#define UFS_VENDOR_MICRON      0x12C
 #define UFS_VENDOR_TOSHIBA     0x198
 #define UFS_VENDOR_SAMSUNG     0x1CE
 #define UFS_VENDOR_SKHYNIX     0x1AD

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index af4b0a2021d6c7f817a1847e0161278862b3b879..a7f520581cb0fbc8918c029a56394ea00dd4cf9b 100644 (file)
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -178,6 +178,8 @@ ufs_get_pm_lvl_to_link_pwr_state(enum ufs_pm_level lvl)
 
 static struct ufs_dev_fix ufs_fixups[] = {
        /* UFS cards deviations table */
+       UFS_FIX(UFS_VENDOR_MICRON, UFS_ANY_MODEL,
+               UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
        UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
                UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
        UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL, UFS_DEVICE_NO_VCCQ),